st: factor variables and pweights not accepted in qreg Stata v13

I just got version 13 today and immediately fired it up...
Contrary to the help file for -qreg- that says "indepvars may contain factor
variables; see fvvarlist" and "qreg allows fweights, aweights, iweights, and
pweights; see weight", I got an error when running the following code:
. sysuse auto
. qreg price weight length i.foreign
factor variables and time-series operators not allowed
r(101);
. qreg price weight length foreign [pw= displacement]
pweight not allowed
r(101);
n.b. I just noticed that in the dialog box for qreg, there is no pweight
option...
Ariel
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